Vacuum permittivity

Okay kiddo, so you remember how we talked about magnets and how some things are attracted to magnets and some are not, right? Well, there's something called electric charges that are kind of like magnets but they have a positive or negative charge instead of a north or south pole.

Now, when we talk about electric charges, we also have to talk about something called electric fields. These fields show us how strong the electric charge is and how it affects other objects around it.

So, let's imagine we have an object with an electric charge. This object is surrounded by an electric field that extends out from it. But how do we measure this field and understand how it affects other objects? That's where vacuum permittivity comes in.

Vacuum permittivity (sometimes called "epsilon naught") is like a special number that tells us how strong electric fields are in a vacuum. A vacuum is a place with no air, no particles, and no materials - it's completely empty. In a vacuum, there are no objects to get in the way of electric fields, so we can get a more accurate measurement of how strong they are.

So, when we talk about vacuum permittivity, we are really talking about how strong electric fields are in a vacuum. This number helps us understand how charges interact with each other and how they affect objects around them.

Does that make sense, kiddo?